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Date: Mon, 18 Nov 2013 13:03:43 -0600
From: Dave Kleikamp <dave.kleikamp@...cle.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
CC: Christoph Hellwig <hch@...radead.org>,
LKML <linux-kernel@...r.kernel.org>,
"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
"Maxim V. Patlasov" <mpatlasov@...allels.com>, linux-aio@...ck.org,
Kent Overstreet <kmo@...erainc.com>,
Jens Axboe <axboe@...nel.dk>
Subject: [GIT PULL] direct IO support for loop driver
Linus,
Please pull the following patches. They add the infrastructure for
kernel-initiated direct-io, change the loop driver to perform direct-io,
and change swap-over-nfs to use the new infrastructure.
These patches have been under development for a long time and have been
in linux-next since August. I'd have sent the request sooner, but I was
on vacation last week.
There are merge conflicts with several files, so I will follow up with
a merge patch.
The following changes since commit 1e52db6908ca5aa8e035caeaf96e8de2567fd84d:
Merge tag 'vfio-v3.12-rc5' of git://github.com/awilliam/linux-vfio (2013-10-14 18:11:28 -0700)
are available in the git repository at:
git://github.com/kleikamp/linux-shaggy.git tags/aio-direct-for-3.13
for you to fetch changes up to bb6f7be483180a9674f3d00b8e97e9b29b39d55d:
tmpfs: add support for read_iter and write_iter (2013-10-18 10:56:54 -0500)
----------------------------------------------------------------
Allow the loop driver to perform direct IO to the underlying file system
----------------------------------------------------------------
Asias He (1):
block_dev: add support for read_iter, write_iter
Dave Kleikamp (22):
iov_iter: iov_iter_copy_from_user() should use non-atomic copy
iov_iter: add __iovec_copy_to_user()
fuse: convert fuse to use iov_iter_copy_[to|from]_user
iov_iter: ii_iovec_copy_to_user should pre-fault user pages
dio: Convert direct_IO to use iov_iter
dio: add bio_vec support to __blockdev_direct_IO()
aio: add aio_kernel_() interface
aio: add aio support for iov_iter arguments
fs: create file_readable() and file_writable() functions
fs: use read_iter and write_iter rather than aio_read and aio_write
fs: add read_iter and write_iter to several file systems
ocfs2: add support for read_iter and write_iter
ext4: add support for read_iter and write_iter
nfs: add support for read_iter, write_iter
nfs: simplify swap
btrfs: add support for read_iter and write_iter
xfs: add support for read_iter and write_iter
gfs2: Convert aio_read/write ops to read/write_iter
udf: convert file ops from aio_read/write to read/write_iter
afs: add support for read_iter and write_iter
ecrpytfs: Convert aio_read/write ops to read/write_iter
ubifs: convert file ops from aio_read/write to read/write_iter
Hugh Dickins (1):
tmpfs: add support for read_iter and write_iter
Zach Brown (9):
iov_iter: move into its own file
iov_iter: add copy_to_user support
iov_iter: hide iovec details behind ops function pointers
iov_iter: add bvec support
iov_iter: add a shorten call
iov_iter: let callers extract iovecs and bio_vecs
fs: pull iov_iter use higher up the stack
bio: add bvec_length(), like iov_length()
loop: use aio to perform io on the underlying file
Documentation/filesystems/Locking | 6 +-
Documentation/filesystems/vfs.txt | 12 +-
drivers/block/loop.c | 158 +++++++++----
drivers/char/raw.c | 4 +-
drivers/mtd/nand/nandsim.c | 4 +-
drivers/usb/gadget/storage_common.c | 4 +-
fs/9p/vfs_addr.c | 12 +-
fs/9p/vfs_file.c | 8 +-
fs/Makefile | 2 +-
fs/adfs/file.c | 4 +-
fs/affs/file.c | 4 +-
fs/afs/file.c | 4 +-
fs/afs/internal.h | 3 +-
fs/afs/write.c | 9 +-
fs/aio.c | 136 ++++++++++-
fs/bad_inode.c | 14 ++
fs/bfs/file.c | 4 +-
fs/block_dev.c | 27 ++-
fs/btrfs/file.c | 42 ++--
fs/btrfs/inode.c | 63 +++---
fs/ceph/addr.c | 3 +-
fs/cifs/file.c | 4 +-
fs/direct-io.c | 223 +++++++++++++------
fs/ecryptfs/file.c | 15 +-
fs/exofs/file.c | 4 +-
fs/ext2/file.c | 4 +-
fs/ext2/inode.c | 8 +-
fs/ext3/file.c | 4 +-
fs/ext3/inode.c | 15 +-
fs/ext4/ext4.h | 3 +-
fs/ext4/file.c | 34 +--
fs/ext4/indirect.c | 16 +-
fs/ext4/inode.c | 23 +-
fs/f2fs/data.c | 4 +-
fs/f2fs/file.c | 4 +-
fs/fat/file.c | 4 +-
fs/fat/inode.c | 10 +-
fs/fuse/cuse.c | 10 +-
fs/fuse/file.c | 90 ++++----
fs/fuse/fuse_i.h | 5 +-
fs/gfs2/aops.c | 7 +-
fs/gfs2/file.c | 21 +-
fs/hfs/inode.c | 11 +-
fs/hfsplus/inode.c | 10 +-
fs/hostfs/hostfs_kern.c | 4 +-
fs/hpfs/file.c | 4 +-
fs/internal.h | 4 +
fs/iov-iter.c | 411 ++++++++++++++++++++++++++++++++++
fs/jffs2/file.c | 8 +-
fs/jfs/file.c | 4 +-
fs/jfs/inode.c | 7 +-
fs/logfs/file.c | 4 +-
fs/minix/file.c | 4 +-
fs/nfs/direct.c | 301 ++++++++++++++++---------
fs/nfs/file.c | 33 ++-
fs/nfs/internal.h | 4 +-
fs/nfs/nfs4file.c | 4 +-
fs/nilfs2/file.c | 4 +-
fs/nilfs2/inode.c | 8 +-
fs/ocfs2/aops.c | 8 +-
fs/ocfs2/aops.h | 2 +-
fs/ocfs2/file.c | 55 ++---
fs/ocfs2/ocfs2_trace.h | 6 +-
fs/omfs/file.c | 4 +-
fs/ramfs/file-mmu.c | 4 +-
fs/ramfs/file-nommu.c | 4 +-
fs/read_write.c | 78 +++++--
fs/reiserfs/file.c | 4 +-
fs/reiserfs/inode.c | 7 +-
fs/romfs/mmap-nommu.c | 2 +-
fs/sysv/file.c | 4 +-
fs/ubifs/file.c | 12 +-
fs/udf/file.c | 13 +-
fs/udf/inode.c | 10 +-
fs/ufs/file.c | 4 +-
fs/xfs/xfs_aops.c | 13 +-
fs/xfs/xfs_file.c | 51 ++---
include/linux/aio.h | 25 ++-
include/linux/bio.h | 8 +
include/linux/blk_types.h | 2 -
include/linux/fs.h | 165 ++++++++++++--
include/linux/nfs_fs.h | 13 +-
include/uapi/linux/loop.h | 1 +
mm/filemap.c | 433 ++++++++++++++----------------------
mm/page_io.c | 15 +-
mm/shmem.c | 61 ++---
86 files changed, 1857 insertions(+), 1003 deletions(-)
create mode 100644 fs/iov-iter.c
--
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